Dual mode earphone with acoustic equalization
US8111853B2 · kind B2 · utility
13Cited by
2References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2008 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Dec 7, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1091
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a dual-mode earphone is provided, comprising a first earbud including a speaker with a diaphragm and at least one acoustic port in front of the diaphragm, and a cap in front of the speaker. The speaker or the cap is configured to move relative to the other for opening and closing the acoustic port in one embodiment and a movable seal is provided in another embodiment. The earphone further includes a second earbud housing operably coupled to the first earbud opposite the speaker. A method for providing acoustic equalization in a dual-mode earphone is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.